.auto_hidden {
	width:204px;border-top: 1px solid #333;
	border-bottom: 1px solid #333;
	border-left: 1px solid #333;
	border-right: 1px solid #333;
	position:absolute;
	display:none;
}
.auto_show {
	width:204px;
	border-top: 1px solid #333;
	border-bottom: 1px solid #333;
	border-left: 1px solid #333;
	border-right: 1px solid #333;
	position:absolute;
	z-index:9999; /* 设置对象的层叠顺序 */
	display:block;
}
.auto_onmouseover{
	color:#ffffff;
	background-color:highlight;
	width:100%;
}
.auto_onmouseout{
	color:#000000;
	width:100%;
	background-color:#ffffff;
}